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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/config/floatunsisf.c | |
| download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz | |
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Diffstat (limited to 'gcc/config/floatunsisf.c')
| -rw-r--r-- | gcc/config/floatunsisf.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/config/floatunsisf.c b/gcc/config/floatunsisf.c new file mode 100644 index 000000000..11d4aa78c --- /dev/null +++ b/gcc/config/floatunsisf.c @@ -0,0 +1,18 @@ +/* Public domain. */ +typedef int SItype __attribute__ ((mode (SI))); +typedef unsigned int USItype __attribute__ ((mode (SI))); +typedef float SFtype __attribute__ ((mode (SF))); + +SFtype +__floatunsisf (USItype u) +{ + SItype s = (SItype) u; + if (s < 0) + { + /* As in expand_float, compute (u & 1) | (u >> 1) to ensure + correct rounding if a nonzero bit is shifted out. */ + return (SFtype) 2.0 * (SFtype) (SItype) ((u & 1) | (u >> 1)); + } + else + return (SFtype) s; +} |